1-azabicyclo[2.2.1]heptane-4-carbonyl chloride hydrochloride | 133643-09-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 1-azabicyclo[2.2.1]heptane-4-carbonyl chloride hydrochloride
• CAS: 133643-09-1
• 化学式: C₇H₁₀ClNO*ClH
• 分子量: 196.076
• InChiKey: FMMNHDJMDYAQEY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.27
• 重原子数：
  11.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  20.31
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  1-azabicyclo[2.2.1]heptane-4-carbonyl chloride hydrochloride 在 吡啶 、 氨 、 三氟乙酸酐 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 25.25h， 生成 4-(2-Trimethylsilanyl-2H-tetrazol-5-yl)-1-aza-bicyclo[2.2.1]heptane
  参考文献：
  名称：

  Substituent variation in azabicyclic triazole- and tetrazole-based muscarinic receptor ligands

  摘要：

  The effect of variation of the 1-azabicyclic substituent on the novel 1,2,3-triazol-4-yl-, 1,2,4-triazol-1-yl-, tetrazol-5-yl-, and tetrazol-2-yl-based muscarinic receptor ligands ha, been studied, and the exo-azabicyclic[2.2.1]hept-3-yl substituent was found to give the most potent and efficacious compounds. In addition, variation of the second substituent on 1,2,4-triazol-1-yl- and tetrazol-2-yl-based muscarinic receptor ligands has yielded a series of novel compounds with high potencies and efficacies, ranging from full agonists to antagonists. Small lipophilic electron withdrawing substituents give potent but low efficacy compounds, while small polar electron donating substituents give potent and efficacious compounds. The activity of these compounds is described in terms of a model of the receptor involving lipophilic and hydrogen bonding interactions. These compounds provide muscarinic ligands with high potency and a range of efficacies suitable for testing as candidate drugs in the treatment of Alzheimer's disease.

  DOI：

  10.1021/jm00091a007
• 作为产物：
  描述：

  1-Aza-bicyclo[2.2.1]heptane-4-carboxylic acid; hydrochloride 在 氯化亚砜 作用下， 反应 4.25h， 生成 1-azabicyclo[2.2.1]heptane-4-carbonyl chloride hydrochloride
  参考文献：
  名称：

  Substituent variation in azabicyclic triazole- and tetrazole-based muscarinic receptor ligands

  摘要：

  The effect of variation of the 1-azabicyclic substituent on the novel 1,2,3-triazol-4-yl-, 1,2,4-triazol-1-yl-, tetrazol-5-yl-, and tetrazol-2-yl-based muscarinic receptor ligands ha, been studied, and the exo-azabicyclic[2.2.1]hept-3-yl substituent was found to give the most potent and efficacious compounds. In addition, variation of the second substituent on 1,2,4-triazol-1-yl- and tetrazol-2-yl-based muscarinic receptor ligands has yielded a series of novel compounds with high potencies and efficacies, ranging from full agonists to antagonists. Small lipophilic electron withdrawing substituents give potent but low efficacy compounds, while small polar electron donating substituents give potent and efficacious compounds. The activity of these compounds is described in terms of a model of the receptor involving lipophilic and hydrogen bonding interactions. These compounds provide muscarinic ligands with high potency and a range of efficacies suitable for testing as candidate drugs in the treatment of Alzheimer's disease.

  DOI：

  10.1021/jm00091a007

文献信息

• Design of [<i>R</i>-(<i>Z</i>)]-(+)-α-(Methoxyimino)-1-azabicyclo[2.2.2]octane-3-acetonitrile (SB 202026), a Functionally Selective Azabicyclic Muscarinic M1 Agonist Incorporating the <i>N</i>-Methoxy Imidoyl Nitrile Group as a Novel Ester Bioisostere
  作者：Steven M. Bromidge、Frank Brown、Frederick Cassidy、Michael S. G. Clark、Steven Dabbs、Michael S. Hadley、Julie Hawkins、Julia M. Loudon、Christopher B. Naylor、Barry S. Orlek、Graham J. Riley

  DOI：10.1021/jm9702903

  日期：1997.12.1

  Loss of cholinergic function is believed to be implicated in the cognitive decline associated with senile dementia of the Alzheimer type (SDAT). The disease is characterized by progressive loss of muscarinic receptors located on nerve terminals while postsynaptic muscarinic M1 receptors appear to remain largely intact. Muscarinic agonists acting directly on postsynaptic receptors offer the prospect of countering the cholinergic deficit in SDAT. This study describes a novel series of azabicyclic muscarinic agonists, which incorporate an oxime ether or modified oxime ether group as an ester bioisostere. Modification of the oxime ether function by the introduction of electron withdrawing groups led to the finding that the (Z)-N-methoxy imidoyl nitrile group serves as a stable methyl ester bioisostere. This culminated in the discovery of the quinuclidinyl N-methoxy imidoyl nitrile R-(+)-(Z)-5g which is a functionally selective muscarinic M1 partial agonist currently in phase III clinical trials for the treatment of SDAT. The selective profile of R-(+)-(Z)-5g can be rationalized in terms of the relative affinity of the compound at muscarinic receptor subtypes, the degree of agonist efficacy, and brain penetrancy.